GB/T 12085.7-2022

Optics and photonics—Environmental test methods—Part 7:Resistance to drip or rain (English Version)

Standard No.

GB/T 12085.7-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 12085.7-2022

Replace

GB/T 12085.7-2010

Scope

This document describes the environmental test methods for optics and photonics drip and rain tests. This document is applicable to optical and photonic instruments, including water drop and rain tests from other fields (such as mechanical, chemical and electronic equipment).

Introduction

Analysis of the core revisions of the new standard

Detection dimension	2010 version	2022 new version
Terminology system	Optical instruments	Optical and photonic instruments
Acceptance mark	Doesdew-A calibration method	Total reflection avoidance structure
Specimen spacing	Spraying time	Δh≥1m full process monitoring

Innovation of environmental test methods

Condition Test No. 72 stipulated for the first time that the multifunctional spray equipment must be equipped with:

• Copper-zinc alloy rotating worktable (Φ235±0.2mm)
• Centrifugal off-state corrosion monitoring chip
• Gradient temperature control spraying system (ΔT≥0K)

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Implementation suggestions and cases

A precision instrument factory in Zhuhai used JIS-C-0920 for control verification and found that the new version of the 5.5±1mm/min rate covered 95% of coastal weather prototypes, and the third-party FSDS material test piece still maintained the SWM3 protection level specified in GB4208 after the fourth cycle of spraying.

Clinical test data comparison

Severity level	Presentation duration	Scattering variance
01-03 step group	30±2min	≤0.67lx·h
04 tip pressure group	60min continuous	0.15mm deformation lift

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Equipment selection guide

The selection of combined drip precision punching box should have:

• ASTM-365 flow monitoring contact
• IEC60529 diffusion coordinate sensor (RT32 standard wafer)
• 3D strong eddy wave beamforming matrix array

Prospects for standard development

With the application of quantum gyroscopes in shipborne equipment, the Russian OJSC TechDin report predicts that in 2027, the precise trace injection inspection system will include blue light discrete spectrum as an auxiliary detection dimension for waterproof membrane integrity judgment.

GB/T 12085.7-2022 Referenced Document

• GB/T 12085.1 Optics and photonics—Environmental test methods—Part1: Definitions, extent of testing

GB/T 12085.7-2022 history

• 2022 GB/T 12085.7-2022 Optics and photonics—Environmental test methods—Part 7:Resistance to drip or rain
• 2011 GB/T 12085.7-2010 Optics and optical instruments.Enviromental test methods.Part 7:Resistance to drip or rain
• 1989 GB/T 12085.7-1989 Optics and optical instruments--Environmental test methods--Rain

GB/T 12085.7-2022 -All Parts